Office



R. B. BENJAMIN.

ELE'CTRiCAL RECEPTACLE.

APPLICATION FILED APR. 30,1911. RENEWED MAY l5. |919.

lntvntod July 8, 1919.

EEUBEN B. BENJAMIN, OFCHICAGO, ILLINOIS, ASSIGNOR TO BENJAMIN ELECTRIC MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A

NOIS.

CORPORATION or' 'ILLI- ELECTBICAL RECEPTACLE.

Bpecication of Letters Patent.

Patented J uly 8, 1.919.

Application nled April 30, 1917, Serial No. 165,481.- Renewed Hay 15, 1919. Serial No. 297,411.

To all whom it may concern.' l 4 Be it known that I, REUBEN B. BENqAMm, a. citizen of the United States,'resid1ng at Chicago, in the county of Cook and State" of Illmois, have invented new and useful 1in rovcments in Electrical "Receptacles, of which the following is a full, clear, concise, and exact deseriptron, reference being had to the' accompanying drawing, forming a part of this specification. f

` My invention relates to electrical receptacles. l

One of the objects of myv invention is to provide an improved duplex receptacle consti-acted to receive three different forms of caps. Further objects will appear from the detailed description to follow and from the ap )ended claim.

n the drawings, in which one embodiment of my invention is sliown- Figure 1 is a face view of a duplex receptacle embodying my invention;

Fig. 2 is a side elevation of Fig. 1 showing the cap in position;

Fig. 3 is a face `View of a cap provided with right-angle blades;

Fig. 4t is a face View of a cap provided with alined blades; and

Fig. 5 is a face view of a cap provided with parallel blades.

Referring now to the drawings in detail, the receptacle shown comprises an `insulating i base 10, springcontact means illy` andi? located in suitalileireeesses in the Base 1 0 com i strnctcd to alternativel engagejeitlerthej Y right-angle' blade cap 1 Y or the alined blade cap 14 (shown in (shown inwFig. Fig. 4), and spring contact means 15 and 16 also located in spitable recesses in the insulating base 10 and constructed to enga e either the right-angle blade cap 13 or he parallel blade cap 17 (shown in Fig. 5). vThe insa-` lating base 10 is provided with restricted I-T slots 18, 19 leading to the recesses in which the spring contact means l1 and 12,

-are located, and with I--T slots20, 21 leading to the recesses in which the spring contact means 15 and 16 are located.

The distance between the crnss-arm of thel i the alined h adel" 30, 3l. The cap T slot 19 and the distant end of the I slot 18 is the same as the distance between the I lslot 20 and the distant portion of thefl' slot 2l', so that the same cap 13 will fit both receptacle portions.

lhe,` ca 13 comprises an insulating base 22 provi ed with binding-terminals 23, 24 electrically iconnected with the rightangle blades 25, 26. Thoca 14; com rises an insulating base 27 rovi ed with inding-ter minals 28, 9, e ectrically` connected with 1T com prises an insulatlhabase 32 provided with binding terminals, 33, 34 electrically connected with 'the parallel blades 35, 36.

What I claim as new and desire to secure by Letters Patent of the United States is:

A duplex receptacle comprising two receptacle portions, one of said receptacle portions comprising insulating means recessed to receive spring contacts, spring contact means constructed to engage either alined blade caps or right-angle blade caps alternatively, said insulatin means being provided with restricted I-d slots leading to said contact means. the I being perpendion ular to the cross-arm of the T, the other of said receptacle portions comprising insulating means recessed to receive spring contacts, spring contact meansconstrncted to engage either parallel blade caps or ri ht angle blade caps alternatively, said insu at ng, means :beixrgrpgrovided with restricted Telas eslrmstdsaid Contact means, the- 1- brein infelici te, the crass-limiet that t; p the distante between the @inseam nf tha i; slot and the distant end of the I slot in sai first-described receptacle portion being the?" same as the distance between the I slot and the distant end of the T slot in the seeondf described receptacleportion, whereby said 9e -receptacleortons will receive the same lade cap. i

right-angle t Idiave hereunto sub. 

